Portion of a shoe sole



FIG. 1 is a top perspective view of a portion of a shoe sole accordingto the present invention;

FIG. 2 is a top view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing of a shoe sole is for illustrative purposes onlyand forms no part of the claimed design.

The ornamental design for a portion of a shoe sole, as shown anddescribed.